US Bridges

I - 22 East over Flat Top Mine Road

Fair

Jefferson County, Alabama · .1 Mile East Warrior Rive · Structure no. 018456

Built
2004
21 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
175 ft
1 main span
Daily traffic
9,380
2024 count
Owner
State
State Highway Agency

About this bridge

I - 22 East over Flat Top Mine Road is a prestressed concrete stringer/multi-beam or girder carrying I - 22 East over Flat Top Mine Road in Jefferson County, Alabama. It was built in 2004, so it is 21 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 9,380 vehicles a day, roughly 22% of them trucks, projected to reach 12,708 by 2044. The structure is 175 ft (53.3 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI - 22 East
CrossesFlat Top Mine Road
Location.1 Mile East Warrior Rive
RouteInterstate 22
CountyJefferson County
StateAlabama
Coordinates33.6623, -87.02404
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.2 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length175 ft (53.3 m)
Longest span85 ft (25.9 m)
Deck width71 ft (21.5 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic9,380 (2024)
Projected traffic12,708 by 2044
Trucks22%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I - 22 East over Flat Top Mine Road built?

It was built in 2004, making it 21 years old in 2025.

What condition is I - 22 East over Flat Top Mine Road in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does I - 22 East over Flat Top Mine Road carry?

About 9,380 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is I - 22 East over Flat Top Mine Road?

The structure is 175 ft (53.3 m) long with a longest span of 85 ft (25.9 m) and a deck 71 ft wide.

Who owns I - 22 East over Flat Top Mine Road?

It is owned by the State Highway Agency.